It’s a catch-22 situation. You are supposed to disclose if you wrote the thing you’re citing, but also cite in third person, and also it should be obfuscated for the peer review. So, what happens is that you write something like “in the author’s previous work (yourownname, 2017)…” then that gets censored by yourself or whoever is in charge of the peer review, “in (blank) previous work (blank)…”. Now, if you’re experienced in reviews you can probably guess it is the author of the paper you’re reviewing. But you still don’t know who it is, and you could never guess right whether it is Ruth Gotian or not. So you’re back to the tweet’s situation.